作者:Masaki Saitoh、Keitaro Hashimoto、Tomoo Nakazawa、Yoshikazu Sugihara
DOI:10.1016/s0040-4039(00)73636-7
日期:1993.5
Substituted di-1-azulenyl ketones composed of 3,8-dimethyl-5-isopropyl-1-azulenyl and/or 4,6,8-trimethyl-1-azulenyl group were refluxed in ethanol in the presence of p-toluenesulfonic acid to give substituted azulenes and ethyl-1-carboxylates derived from the cleavage of either of C-CO bonds of di-1-azulenyl ketones. The facility and the product distributions of the ethanolysis were affected markedly by the substituents.